I have enough charge to get started, but bike only runs a few minutes, shorter if I turn ignition switch to lights. All the juice is drained to the point I get no lights, but after it sits for a day I have enough current to get lights on and start the bike again. Then runs for a few minutes, shorter if I turn the lights on, and dies again. All wires/connections look good. Any suggestions for how to diagnose and fix the problem?